‰ NOW 30 WPM ‰
ENABLED IN THE SETUP MENU. UNLIKE SOME SOUND CARD BASED SPECTRUM ANALYZER
SOFTWARE I HAVE TRIED ADMITTEDLY SHAREWARE, THE SPECTRAVUE PROGRAM ALLOWS
FULL CONTROL OVER THE SPAN AND VERTICAL SCALES OF THE DISPLAY. THE LATTER
HAS OPTIONS OF 10 DB, 5 DB, 2 DB, 1 DB, 0R5 DB AND 0R2 DB PER VERTICAL
DIVISION. ANOTHER NICE FEATURE IS THAT THE PEAK LEVEL TO THE NEAREST WHOLE
DB IN THE DISPLAY WINDOW IS SHOWN IN A BOX NEAR THE DEMOD OPTION SECTION OF
THE SCREEN. THE MOUSE CURSOR CAN BE ROLLED OVER THE SPECTRUM DISPLAY AND
THE AMPLITUDE AND FREQUENCY VALUES APPEAR BELOW THE SPECTRUM ON THE RIGHT
SIDE OF THE SCREEN. THE AMPLITUDE RESOLUTION OF THIS READOUT VARIES FROM
1/10TH TO 1/100TH OF A DB DEPENDING ON THE VERTICAL SCALE AND FREQUENCY
RESOLUTION VARIES FROM 1 HZ TO 1/1000TH OF A HZ DEPENDING ON THE CENTER
FREQUENCY HIGHER RESOLUTION FOR LOWER FREQUENCY MEASUREMENTS. THE 3D FFT
SCREEN FIGURE 6 IS A RATHER INTERESTING FEATURE THAT ADDS A HISTORICAL
PERSPECTIVE TO THE SPECTRUM. THAT IS TO SAY THAT IT DISPLAYS MULTIPLE TIME
‰ FROM PAGE 97 ‰
Dauberville DX Assn K3TI K3YTR 350 2 14 1,408 EPA CERTS/CARC VE3BPQ 432 2 5
1,400 ON VE3TNC 277 2 20 1,394 ON Martin Co ARES/RACES WX4MC 260 2 32 1,386
‰ END OF 30 WPM TEXT ‰ QST DE W1AW ƒ